widgets: Reduce the size of the battery icon

Currently the battery icon is overlarge compared to other status bar
icons such as the BT and notification icons (both of which are 32px
high). Fix this by redrawing the battery artwork and updating
the widgets in the status bar.

Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>

TODO.rst

@@ -39,7 +39,7 @@ Wasp-os
   * [ ] Introduce fwd/back/vol+/vol- buttons to the music player
   * [ ] Update icon for Alarm app
   * [ ] Update art work for buttons in Confirmation view
-  * [ ] Reduce the size of the battery charge icon slightly (match bell)
+  * [X] Reduce the size of the battery charge icon slightly (match bell)
 
 * [ ] Applications
 

wasp/icons.py

@@ -1,8 +1,18 @@
 # SPDX-License-Identifier: LGPL-3.0-or-later
 # Copyright (C) 2020 Daniel Thompson
 
-# 1-bit RLE, generated from res/battery.png, 189 bytes
+# 2-bit RLE, generated from res/battery.png, 104 bytes
-battery = (36, 48, b'\x97\x0e\x14\x12\x11\x14\x10\x14\x0c\x08\x0c\x08\x08\x08\x0c\x08\x08\x08\x0c\x08\x08\x08\x0c\x08\x08\x04\x14\x04\x08\x04\x14\x04\x08\x04\x0c\x04\x04\x04\x08\x04\x0b\x05\x04\x04\x08\x04\n\x06\x04\x04\x08\x04\t\x07\x04\x04\x08\x04\x08\x07\x05\x04\x08\x04\x07\x07\x06\x04\x08\x04\x06\x07\x07\x04\x08\x04\x05\x07\x08\x04\x08\x04\x04\x0e\x02\x04\x08\x04\x03\x0f\x02\x04\x08\x04\x02\x10\x02\x04\x08\x04\x02\x10\x02\x04\x08\x04\x02\x0f\x03\x04\x08\x04\x02\x0e\x04\x04\x08\x04\x08\x07\x05\x04\x08\x04\x07\x07\x06\x04\x08\x04\x06\x07\x07\x04\x08\x04\x05\x07\x08\x04\x08\x04\x04\x07\t\x04\x08\x04\x04\x06\n\x04\x08\x04\x04\x05\x0b\x04\x08\x04\x04\x04\x0c\x04\x08\x04\x14\x04\x08\x04\x14\x04\x08\x04\x14\x04\x08\x04\x14\x04\x08\x1c\x08\x1c\x08\x1c\x08\x1c\x98')
+battery = (
+    b'\x02'
+    b'\x18 '
+    b'\x04\x01\x02\xca\x0c\xce\n\xce\t\xd0\x04\xc8\x08\xd0\x08\xd0'
+    b'\x08\xd0\x08\xcc\x04\x08\x04\xc8\x10\xc8\t\xc3\x04\xc8\x08\xc4'
+    b'\x04\xc8\x07\xc5\x04\xc8\x06\xc5\x05\xc8\x05\xc5\x06\xc8\x04\xc5'
+    b'\x01@\xfcA\x05\xc8\x03\xcb\x02\xc8\x02\xcc\x02\xc8\x02\xcc'
+    b'\x02\xc8\x02\xcb\x03\xc8\x05\x01\x01\xc5\x04\xc8\x06\xc5\x05\xc8'
+    b'\x05\xc5\x06\xc8\x04\xc5\x07\xc8\x04\xc4\x08\xc8\x04\xc3\t\xc8'
+    b'\x10\xc8P\xff%'
+)
 
 # 2-bit RLE, generated from res/bomb.png, 100 bytes
 bomb = (

wasp/widgets.py

@@ -39,7 +39,7 @@ class BatteryMeter:
 
         if watch.battery.charging():
             if self.level != -1:
-                draw.rleblit(icon, pos=(239-icon[0], 0),
+                draw.blit(icon, 239-icon[1], 0,
                              fg=wasp.system.theme('battery'))
                 self.level = -1
         else:
@@ -47,30 +47,28 @@ class BatteryMeter:
             if level == self.level:
                 return
 
-            if level > 96:
-                h = 24
-                rgb = 0x07e0
-            else:
-                h = level // 4
 
-                green = level // 3
+            green = level // 3
-                red = 31-green
+            if green > 31:
-                rgb = (red << 11) + (green << 6)
+                green = 31
+            red = 31-green
+            rgb = (red << 11) + (green << 6)
 
             if self.level < 0 or ((level > 5) ^ (self.level > 5)):
                 if level  > 5:
-                    draw.rleblit(icon, pos=(239-icon[0], 0),
+                    draw.blit(icon, 239-icon[1], 0,
                              fg=wasp.system.theme('battery'))
                 else:
                     rgb = 0xf800
-                    draw.rleblit(icon, pos=(239-icon[0], 0), fg=0xf800)
+                    draw.blit(icon, 239-icon[1], 0, fg=0xf800)
 
-            x = 239 - 30
+            w = icon[1] - 10
-            w = 16
+            x = 239 - 5 - w
-            if 24 - h:
+            h = 2*level // 11
-                draw.fill(0, x, 14, w, 24 - h)
+            if 18 - h:
+                draw.fill(0, x, 9, w, 18 - h)
             if h:
-                draw.fill(rgb, x, 38 - h, w, h)
+                draw.fill(rgb, x, 27 - h, w, h)
 
             self.level = level
 
@@ -111,14 +109,14 @@ class Clock:
             draw = wasp.watch.drawable
             draw.set_font(fonts.sans28)
             draw.set_color(wasp.system.theme('status-clock'))
-            draw.string(t1, 52, 12, 138)
+            draw.string(t1, 52, 4, 138)
 
         self.on_screen = now
         return now
 
 class NotificationBar:
     """Show BT status and if there are pending notifications."""
-    def __init__(self, x=2, y=8):
+    def __init__(self, x=0, y=0):
         self._pos = (x, y)
 
     def draw(self):
@@ -213,10 +211,9 @@ class ScrollIndicator:
         color = wasp.system.theme('scroll-indicator')
 
         if self.up:
-            draw.rleblit(icons.up_arrow, pos=self._pos, fg=color)
+            draw.blit(icons.up_arrow, self._pos[0], self._pos[1], fg=color)
         if self.down:
-            draw.rleblit(icons.down_arrow, pos=(self._pos[0], self._pos[1] + 13),
+            draw.blit(icons.down_arrow, self._pos[0], self._pos[1]+13, fg=color)
-                         fg=color)
 
 _SLIDER_KNOB_DIAMETER = const(40)
 _SLIDER_KNOB_RADIUS = const(_SLIDER_KNOB_DIAMETER // 2)